sfcore.org - robtex.com

sfcore.org

DNSSEC⚠️ Not signed
NSns1.sk.eserver.net ⭐
A185.48.248.22πŸ‡ΈπŸ‡° ESERVER-SK-AS185.48.248.0/23 eServer s.r.o.
PTRns1.sk.eserver.net
NSns2.sk.eserver.net
A2a04:b540:1:2::11πŸ‡ΈπŸ‡° ESERVER-SK-AS2a04:b540::/36 eServer s.r.o. IPv6
PTRns2.sk.eserver.net
A185.48.249.22πŸ‡ΈπŸ‡° ESERVER-SK-AS185.48.248.0/23 eServer s.r.o.
PTRns2.sk.eserver.net
NSns3.sk.eserver.net
A2a04:b540:1:2::3πŸ‡ΈπŸ‡° ESERVER-SK-AS2a04:b540::/36 eServer s.r.o. IPv6
PTRes.dc-unassigned.eserver.net
A185.48.248.222πŸ‡ΈπŸ‡° ESERVER-SK-AS185.48.248.0/23 eServer s.r.o.
PTRns3.sk.eserver.net
NSns4.sk.eserver.net
A91.219.236.163πŸ‡­πŸ‡Ί ServerAstra-AS91.219.236.0/24
PTRns4.sk.eserver.net
MXedge.sfcore.org ⭐
A212.74.225.138πŸ‡·πŸ‡Ί SELECTEL-MSK212.74.224.0/22 Selectel Route Object
PTRedge.sfcore.org
MXmailbox.germanywestcentral.cloudapp.azure.com(10)
A20.113.66.250πŸ‡©πŸ‡ͺ Microsoft20.64.0.0/10
PTRmailbox.germanywestcentral.cloudapp.azure.com
TXTMS=ms22384535
TXT_globalsign-domain-verification=HoZVXtL_k-lVTVa5njTq-MBa0Q1BuKl1kNJuSM7WA7
TXTv=spf1 a:mail.workhost.de mx -all
SOAns1.sk.eserver.nethostmaster@sfcore.org 2026-07-20 #2

org

DNSSECπŸ”’ Signed (DS record present)
NSa0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation
NSa2.org.afilias-nst.info ⚠️ Not in parent delegation
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info ⚠️ Not in parent delegation
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1786269970

Subdomains

Same first word

Similar names

DNS History

6 records (6 active, 0 former)

NSns1.sk.eserver.netns2.sk.eserver.netns3.sk.eserver.netns4.sk.eserver.netMXedge.sfcore.orgmailbox.germanywestcentral.cloudapp.azure.com
●NSns1.sk.eserver.net2026-08-03 β†’ 2026-08-09 Β· 2 obs
● 2026-08-03 03:57:42
● 2026-08-09 10:48:12
●NSns2.sk.eserver.net2026-08-03 β†’ 2026-08-09 Β· 2 obs
● 2026-08-03 03:57:42
● 2026-08-09 10:48:12
●NSns3.sk.eserver.net2026-08-03 β†’ 2026-08-09 Β· 2 obs
● 2026-08-03 03:57:42
● 2026-08-09 10:48:12
●NSns4.sk.eserver.net2026-08-03 β†’ 2026-08-09 Β· 2 obs
● 2026-08-03 03:57:42
● 2026-08-09 10:48:12
●MXedge.sfcore.org2026-08-03 β†’ 2026-08-09 Β· 2 obs
● 2026-08-03 03:57:42
● 2026-08-09 10:48:12
●MXmailbox.germanywestcentral.cloudapp.azure.com2026-08-03 β†’ 2026-08-09 Β· 2 obs
● 2026-08-03 03:57:42
● 2026-08-09 10:48:12

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
orgd0.org.afilias-nst.org, b0.org.afilias-nst.org, b2.org.afilias-nst.org-
sfcore.orgns2.sk.eserver.net, ns3.sk.eserver.net, ns4.sk.eserver.net, ns1.sk.eserver.net-

βœ… Authoritative Response

Server:185.48.248.22

NS records: ns2.sk.eserver.net, ns3.sk.eserver.net, ns4.sk.eserver.net, ns1.sk.eserver.net

πŸ”’ DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sfcore.org (unsigned zone)

⏱️ Timing

Total: 866ms | Queries: -

πŸ“„ Records

TypeCountSample Data
NS4ns3.sk.eserver.net, ns1.sk.eserver.net...
MX2mailbox.germanywestcentral.cloudapp.azur, edge.sfcore.org (pri: 0)
TXT3_globalsign-domain-verification=HoZVXtL_, MS=ms22384535...
SOA1ns1.sk.eserver.net hostmaster.sfcore.org

Analysis

Hierarchy

sfcore.org is the parent domain of mail.sfcore.org and edge.sfcore.org.

Name Servers

sfcore.org has four authoritative name servers: ns1.sk.eserver.net, ns2.sk.eserver.net, ns3.sk.eserver.net and ns4.sk.eserver.net.

sfcore.org shares at least some of its name servers with other domains, including 248.48.185.in-addr.arpa, kbks.org, ndt.rs and two others.

Host names with two IP numbers:

ns2.sk.eserver.net resolves to 185.48.249.22 and 2a04:b540:1:2::11.

ns3.sk.eserver.net resolves to 185.48.248.222 and 2a04:b540:1:2::3.

Host names pointing to a single IP address:

ns1.sk.eserver.net resolves to 185.48.248.22.

ns4.sk.eserver.net resolves to 91.219.236.163.

Mail Servers

sfcore.org has two mail servers: edge.sfcore.org and mailbox.germanywestcentral.cloudapp.azure.com.

sfcore.org shares its mail server configuration with other domains such as port-expert.ru, tasty-kingdom.ru and adga.ru.

edge.sfcore.org and mailbox.germanywestcentral.cloudapp.azure.com each resolve to one IP number: edge.sfcore.org points to 212.74.225.138 and mailbox.germanywestcentral.cloudapp.azure.com points to 20.113.66.250.